Notice 2025-49 provides additional interim guidance on

the applicability dates and reliance rules provided in the CAMT proposed regulations, AFSI adjustments for certain items measured at fair value, and specific other AFSI adjustments.

Statement of Rules Applied Corporations must include with Form 4626 a statement describing the approach taken in completing Form 4626 and the guidance relied upon. For example, if the corporation applied provisions of the proposed regulations for certain line items, it must list the sections of the proposed regulations which it applied. If one or more line items are not based on the proposed regulations, the

corporation must provide an explanation of the legal basis for the line items; for example, the statute or applicable notice provision.